Suppose that a population parameter is 0.7 and many samples are taken from the population. If the size of each sample is 30, what is the standard
error of the distribution of sample proportions?
O A. 0.115
OB. 0.008
O C. 0.084
O D. 0.141

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities